-- AndreiTsaregorodtsev - 12-Feb-2010

1. Preparation of the machines to host the new system. The following machines will be
used (together with their intended aliases):

- volhcb18 ( alias lhcb-sec-dirac ): Secure services
- volhcb19 ( alias lhcb-serv1-dirac): DIRAC services
- volhcb20 ( alias lhcb-agent1-dirac): DIRAC agents
- volhcb21 ( alias lhcb-db1-dirac): DB server 1
- volhcb22 ( alias lhcb-db2-dirac): DB server 2
- volhcb15 ( alias lhcb-se-dirac): LogSE, sandbox SE
- volhcb17 - web server.

  The machines are configured with the DIRAC standard profile.
  Should be done and checked Friday 12 Feb (Joel)

2. Preparation of the installation scripts for each of the hosts with the proper lists of
    components to be installed
   Should be done Friday 12 Feb (Andrei)

3. Installation of the new production machines in a completely independent
    LHCb-NewProduction setup using the Configuration Service on volhcb04 as a master.
    Should be done by Monday 15 Feb (Andrei,Ricardo)

4. Sending a reminder to the LHCb users about the service stop Tuesday 16 Feb
    for one day.

5. Full configuration of the LHCb-NewProduction setup. Monday 15 Feb

6. Freezing and releasing v5r0 DIRAC version. Updating the installation to this version.
    Monday 15 Feb. (Andrei). v5r0 client installation on AFS/lxplus (Joel).

7. Full testing of the LHCb-NewProduction setup installation. Monday,Tuesday 15-16 Feb.
    - running test productions;
    - user job tests;
    - SAM job tests;
    - Ganga tests.
    - subsystem tests
    Making patches if necessary, validation of the configuration.
    (All)

8. Stopping the current production DIRAC services. Tuesday 16 Feb, 17:00.
    - Sending notification to LHCb users with a reminder to update the Ganga installations;
    - Stopping the DIRAC Data Transfer agent in the pit;

9. Switching to the new installation:
    - migration the master CS to lhcb-sec-dirac from volhcb04 (Ricardo)
    - migrations of the old production databases from volhcb09,13 to lhcb-db(1,2)-dirac hosts (Andrei,Ricardo)
    - delete jobs from the productions that are archived and not moved to the new database
    - update of the database schema ( ProductionDB ) (Andrew)
    - migration of the Accoutning and Monitoring services in Barcelona to v5r0 (Adri )
    - migration of lhcbweb, lhcbtest, volhcb12 web servers to v5r0 (Adri, Matvey)
    - update of 1-2 VO-boxes at Tier1s to v5r0, stopping the others (Ricardo, Raja).
    - update the DIRAC installation on the Gateway in the Pit, restart data transfers (Andrew)

    After switching all the services on, we will have a fully functional new production setup. The setup name
    is still kept as LHCb-NewProduction to prevent user job submissions.

10. Final tests and adjustments, Wednesday, 17 Feb, morning
      (All)

11. Renaming the LHCb-NewProduction setup to LHCb-Production. Wednesday, 17 Feb, afternoon.

12. Restarting the whole service for the LHCb users, passing the announcement. 

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Topic revision: r1 - 2010-02-12 - AndreiTsaregorodtsev
 
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